| /* -*- Mode: C; tab-width: 4 -*- |
| * |
| * Copyright (c) 2002-2004 Apple Computer, Inc. All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef __mDNSUNP_h |
| #define __mDNSUNP_h |
| |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| #include <net/if.h> |
| #include <netinet/in.h> |
| |
| #ifdef HAVE_LINUX |
| #include <linux/socket.h> |
| #define IPV6_2292_PKTINFO IPV6_2292PKTINFO |
| #define IPV6_2292_HOPLIMIT IPV6_2292HOPLIMIT |
| #else |
| // The following are the supported non-linux posix OSes - |
| // netbsd, freebsd and openbsd. |
| #if HAVE_IPV6 |
| #define IPV6_2292_PKTINFO 19 |
| #define IPV6_2292_HOPLIMIT 20 |
| #endif |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #ifdef NOT_HAVE_SOCKLEN_T |
| typedef unsigned int socklen_t; |
| #endif |
| |
| #if !defined(_SS_MAXSIZE) && !defined(__ANDROID__) |
| #if HAVE_IPV6 |
| #define sockaddr_storage sockaddr_in6 |
| #else |
| #define sockaddr_storage sockaddr |
| #endif // HAVE_IPV6 |
| #endif // !defined(_SS_MAXSIZE) && !defined(__ANDROID__) |
| |
| #ifndef NOT_HAVE_SA_LEN |
| #define GET_SA_LEN(X) (sizeof(struct sockaddr) > ((struct sockaddr*)&(X))->sa_len ? \ |
| sizeof(struct sockaddr) : ((struct sockaddr*)&(X))->sa_len ) |
| #elif HAVE_IPV6 |
| #define GET_SA_LEN(X) (((struct sockaddr*)&(X))->sa_family == AF_INET ? sizeof(struct sockaddr_in) : \ |
| ((struct sockaddr*)&(X))->sa_family == AF_INET6 ? sizeof(struct sockaddr_in6) : sizeof(struct sockaddr)) |
| #else |
| #define GET_SA_LEN(X) (((struct sockaddr*)&(X))->sa_family == AF_INET ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr)) |
| #endif |
| |
| #define IFI_NAME 16 /* same as IFNAMSIZ in <net/if.h> */ |
| #define IFI_HADDR 8 /* allow for 64-bit EUI-64 in future */ |
| |
| // Renamed from my_in_pktinfo because in_pktinfo is used by Linux. |
| |
| struct my_in_pktinfo { |
| struct sockaddr_storage ipi_addr; |
| int ipi_ifindex; /* received interface index */ |
| char ipi_ifname[IFI_NAME]; /* received interface name */ |
| }; |
| |
| /* From the text (Stevens, section 20.2): */ |
| /* 'As an example of recvmsg we will write a function named recvfrom_flags that */ |
| /* is similar to recvfrom but also returns: */ |
| /* 1. the returned msg_flags value, */ |
| /* 2. the destination addres of the received datagram (from the IP_RECVDSTADDR socket option, and */ |
| /* 3. the index of the interface on which the datagram was received (the IP_RECVIF socket option).' */ |
| extern ssize_t recvfrom_flags(int fd, void *ptr, size_t nbytes, int *flagsp, |
| struct sockaddr *sa, socklen_t *salenptr, struct my_in_pktinfo *pktp, u_char *ttl); |
| |
| struct ifi_info { |
| char ifi_name[IFI_NAME]; /* interface name, null terminated */ |
| u_char ifi_haddr[IFI_HADDR]; /* hardware address */ |
| u_short ifi_hlen; /* #bytes in hardware address: 0, 6, 8 */ |
| short ifi_flags; /* IFF_xxx constants from <net/if.h> */ |
| short ifi_myflags; /* our own IFI_xxx flags */ |
| int ifi_index; /* interface index */ |
| struct sockaddr *ifi_addr; /* primary address */ |
| struct sockaddr *ifi_netmask; |
| struct sockaddr *ifi_brdaddr;/* broadcast address */ |
| struct sockaddr *ifi_dstaddr;/* destination address */ |
| struct ifi_info *ifi_next; /* next of these structures */ |
| }; |
| |
| #if defined(AF_INET6) && HAVE_IPV6 && HAVE_LINUX |
| #define PROC_IFINET6_PATH "/proc/net/if_inet6" |
| extern struct ifi_info *get_ifi_info_linuxv6(int family, int doaliases); |
| #endif |
| |
| #if defined(AF_INET6) && HAVE_IPV6 |
| #define INET6_ADDRSTRLEN 46 /*Maximum length of IPv6 address */ |
| #endif |
| |
| |
| |
| #define IFI_ALIAS 1 /* ifi_addr is an alias */ |
| |
| /* From the text (Stevens, section 16.6): */ |
| /* 'Since many programs need to know all the interfaces on a system, we will develop a */ |
| /* function of our own named get_ifi_info that returns a linked list of structures, one */ |
| /* for each interface that is currently "up."' */ |
| extern struct ifi_info *get_ifi_info(int family, int doaliases); |
| |
| /* 'The free_ifi_info function, which takes a pointer that was */ |
| /* returned by get_ifi_info and frees all the dynamic memory.' */ |
| extern void free_ifi_info(struct ifi_info *); |
| |
| #ifdef NOT_HAVE_DAEMON |
| extern int daemon(int nochdir, int noclose); |
| #endif |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif |